LG FLATRON L1920P Service Manual page 18

TROUBLE IN DPM
5 6
R629, R630 (SYNC) ?
TROUBLE IN PC
Waveforms
5
U201-#181/R629
4. TROUBLE IN DPM
CHECK
YES
CHECK
U201 PIN 81
(0V) ?
YES
6
U201-#182/R630
NO
NO
- 16 -
CHECK PC
PC IS NOT GOING
INTO DPM OFF MODE
TROUBLE IN SIGNAL CABLE